Correction

In this published article [1], a couple of typos in Table 2 were found:

  • The restriction enzymes Hy17VII and the Hpy44II should be Hpy178II and HpyF44II instead.

  • The cognate restriction site for Hpy188I, Hpy188III and HpyF2I should be TCNGA, TCNNGA, and CTRYAG, respectively.

  • The subtitle ‘Mean ± SD the frequency’ should by followed by ‘/1,000 bp’ instead of ‘/1.00 bp’

  • The footnotes were misleading and are now corrected.

In addition, we apologize for the omission of following source that it should be included on the methods section as a reference:

Roberts RJ, Vincze T, Posfai J, Macelis D (2010) REBASE--a database for DNA restriction and modification: enzymes, genes and genomes. Nucl. Acids Res. 38: D234D236.

Table 2 Mean of the observed and expected combined values of the cognate recognition sites in H. pylori whole genome sequences and MLS for hspAmerind and hpEurope strains